Restructure pkg/unittest and pkg/webdriver to follow the pub conventions.

tests/language/language.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # This directory contains tests that are intended to show the
 # current state of the language.
 
 # In order to maintain maximum test coverage for all builds,
 # please use the following procedure to mark a test
 # failed on architectures other than the one you are working on.
@@ skipping 37 matching lines @@
 lazy_static3_test: Fail # Issue 3558
 
 type_error_test: Fail # http://dartbug.com/5280
 
 # DartC specific tests that should not be run by the VM
 *dartc_test: Skip
 *dartc_negative_test: Skip
 
 compile_time_constant10_test/none: Fail # issue 5214
 
-export_cyclic_test: Crash # issue 6060
-
 call_through_getter_test: Fail # issue 6124
 call_through_null_getter_test: Fail # issue 6124
 local_function_test: Fail # issue 6124
 naming_test: Fail # issue 6124
 
 invocation_mirror_test: Fail # issue 3326, 3622.
 
+export_cyclic_test: Fail, Crash # issue 6060
+
 [ $compiler == none && ($system == macos || $system == linux) && $arch == ia32 && $checked ]
 gc_test: Skip  # Issue 1487, flaky.
 
 [ $compiler == none && $mode == debug ]
 gc_test: Skip  # Takes too long.
 
 [ $compiler == none && $unchecked ]
 field_override_test/02: Fail    # Issue 742: field shadowing now allowed
 
 # Only checked mode reports an error on type assignment
@@ skipping 231 matching lines @@
 # Add new dartc annotations above in alphabetical order
 #
 
 # VM specific tests that should not be run by DartC.
 *vm_test: Skip
 *vm_negative_test: Skip
 
 
 [ $compiler == none && $runtime == drt ]
 gc_test: Skip # Issue 1487
-prefix_new_test: Fail
 import_combinators_test: Fail
-export_test: Fail # Issue 5785
-export_cyclic_test: Fail # Issue 5785
 first_class_types_libraries_test: Fail # Issue 2264
 local_export_test: Fail # http://dartbug.com/2264
 
 
 [ $runtime == dartium ]
 import_combinators_test: Fail
 
 
 [ $runtime == vm || ($runtime == drt && $compiler == none) ]
 call_test: Fail # Issue 1604
@@ skipping 228 matching lines @@
 
 type_error_test: Fail, OK # VM bug: http://dartbug.com/5280
 
 call_through_getter_test: Fail # issue 6130
 call_through_null_getter_test: Fail # issue 6130
 local_function_test: Fail # issue 6130
 naming_test: Fail # issue 6130
 
 # This is a VM error when the compiled code is run.
 invocation_mirror_test: Fail # issue 3326, 3622.